If Outlook Express has not been installed on a system, MS03-014 may appear as 'missing', however, the patch will not install. This is a known issue when trying to install Outlook Express patches on systems where Outlook Express has been specifically removed from the Internet Explorer installation.
If Outlook Express is not installed, the system is not vulnerable to the specified issue, and thus can be ignored from the scan results (either right click and 'hide patch item', right click and select 'Modify criticality-Ignore' or create a patch group containing this patch and specifically filter to ignore this patch group in a scan template).